Gross! Also… a significant part of the granules get flushed down the bathroom. I haven’t researched Those people precisely… but I can’t envision that it's superior for the plumbing. The granules appear to be plastic. Probably they biodegrade? Idk.. not my fav. We have been wanting in to other systems. https://petskyonline-onlinestrore.blogspot.com/2025/07/petkit-purobot-ultra-premier-auto.html